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As mentioned on the last page, the other option for a Gen 3 cam is a regrind. This is when an existing cam is "reground" to create a new cam profile. Although this method is much cheaper, there are a few disadvantages to it. First, you are somewhat limited to the profile, since you aren't working from a new piece of steel, but something that already has an existing profile. But, you can still get a wide range of profiles (including very close to the MMS specs from the last page) with a regrind. Second, you must have an existing cam to send off. If you don't have one, then you have to either find a used one and hope its in good shape, or buy an aftermarket stock replacement. There are advantages to the aftermarket stock replacements, as they are solid cams versus the stock assembled cam (with the hollow shaft). This increases the cost, but still maintains it below the cost of the billet cam.
Regrinds are available through several companies, including Crower, Crane and Comp. These companies will do a regrind to almost any specs you want for between $110-$140.
Here are the specs from my Crower regrind:
Duration : 214� intake / 214� exhaust (@ 0.050" lift)
Advertised : 274� intake / 274� exhaust (@ 0.001" lift)
Lift @lobe: 0.302"
with 1.6 stamped rockers : 0.483"
And here are Chris William's specs from his Crane regrind:
Duration : 220� intake / 224� exhaust (@0.050" lift)
Advertised : 276� intake / 280� exhaust (@0.001" lift)
Lift @lobe : 0.310" intake / 0.319" exhaust
with 1.6 roller rockers : 0.496" intake / 0.510" exhaust
These are both considered radical grinds and will not work well with stock programming. Discussions on the forums have indicated that a good performance grind for these engines would have a duration of 206� intake / 210� exhaust (@ 0.050" lift) and a lobe lift around 0.295" if you don't have the ability to tune the PCM. This should still give you good idle quality, yet provide a gain in performance. If you have the ability to tune the PCM (DHP PowerTunr or similar), then you can make changes to the programming to allow for much more radical cam profiles.
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